Product specification
1.Product name: 45mm 45 ohm 0.5watt Waterproof round mini woofer doorbell mylar speaker driver unit on sale
2.Product model No. GJ-45MM
3.Size: Diameter 45mm, Height 17mm+-0.3mm
4.Impedance: 8ohm
5.Power rating: 3-4.0w
6.FO: 470+-20%HZ
7.SPL: 93+-3dB/0.1Watt 10Meter. At 800 ,1000 ,1200 ,1500HZ
8.Frequency Range: FO~8K HZ
9.Distortion: 10% maximum at 1000HZ.3.0mw.
10.Abnormal sound test: must be normal tested by 4.0 volts.Sine wave for 20~20kHZ
11.Operating Temperature: -25 degree to 50 degree
12.Storage Temperature: -40 degree to 60 degree
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